"The revolutionary dimensions of Mao’s victory were not well understood at the time and are still contested. Neither a grievous political defeat for the United States nor a great triumph for the USSR, the establishment of communist rule in China exposed the limits of the Superpowers’ agility and skill. Locked in their rivalry over Europe in 1947–1948, both had failed to deal adroitly with the rapid deterioration of the Nationalist (Kuomintang) government and with the communists’ determination to prevail. In Washington, which was caught up in the close presidential campaign of 1948, the debate between the ardent proponents of military support for Chiang and the equally passionate decriers of his government’s corruption and ineptitude produced a $400 million aid appropriation but also a paralyzing fatalism over the US role in China’s future, particularly given the political impossibility of armed intervention. Similarly, in Moscow, the fears of US intervention and of a feisty Chinese Tito as well as the advantages of a weak and divided China that would preserve the Yalta gains had to be weighed against the ideological benefits of obtaining a huge Asian satellite. Stalin’s capricious gestures in 1948 were the result: a mediation offer that annoyed Washington and infuriated Mao and the delay in inviting the communist leader to Moscow, but also the intense communications between the two parties, the procommunist pronouncements later that year, and the stepped-up arms deliveries and diplomatic contacts in 1949."